The Western Arctic Caribou Herd, once the biggest in Alaska, is faltering, having fallen from a high of 490,000 animals in 2003 to only 152,000 as of 2023. But to the east, the Porcupine Caribou Herd ...

When Cyrus Harris first saw a beaver during a camping trip in the tundra territory in the far northwest of Alaska in 1988, the discovery created a stir in his hometown of Kotzebue. “That made big news ...

Arctic tundra, which has stored carbon for thousands of years, has now become a source of carbon dioxide. The new research, led by scientists at the Woodwell Climate Research Center in Falmouth, ...

Arctic tundra, which has stored carbon for thousands of years, has now become a source of planet-warming pollution. As wildfires increase and hotter temperatures melt long-frozen ground, the region is ...

A new study highlights the importance of caribou and muskoxen to the greening Arctic tundra, linking grazing with plant phenology and abundance in the Arctic tundra. The story of Arctic greening has ...

Add Yahoo as a preferred source to see more of our stories on Google. Teshekpuk caribou graze in the National Petroleum Reserve-Alaska. Bob Wick/BLM, CC BY The largest tract of public land in the ...

Provides an introduction to Earth's biomes, explaining how they are communities of living organisms shaped by climate and geography. Key factors influencing biomes include light and water availability ...